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G.fast Promises a Copper Speed Boost with VDSL2 Vectoring 2.0

By Mae Kowalke, TMCnet Contributor

There was a time when fiber-to the-home was seen as the future of broadband. But all that changed with the introduction of VDSL2 vectoring.

“With a single innovation, the market shifted,” noted Alcatel-Lucent colleagues Paul Spruyt and Dr. Stefaan Vanhastel in a recent blog post, The Numbers are in: Vectoring 2.0 Makes G.fast Faster. “Copper became a valuable commodity again as operators began using their copper assets to deliver fast broadband speeds faster.”

Making that copper even more valuable potentially is the new G.fast standard.

G.fast can increase aggregate bit rates over copper loops shorter than 250 m to fiber speeds of more than 1 Gb/s, the authors explained. It also delivers a cost advantage over deploying fiber directly to the home.

The trouble is that G.fast suffers from crosstalk even more than VDSL2. Tests by Bell Labs on older, unshielded cables in Austria showed that G.fast reached speeds of 500 Mb/s over 100 m when a single line was active, but they fell to a measly 60 MB/s when crosstalk was introduced as a result of a second G.fast line being added.

Alcatel-Lucent 7705 SAR Solutions are Revolutionizing the IP/MPLS Backhaul Market

By Beecher Tuttle

Compensating for the ever-increasing demand for high-bandwidth connectivity is every service provider's number one concern.  This is for good reason. Next generation services can help mobile operators limit churn and enable them to tap into new revenue streams and improve their bottom lines.

Unfortunately, completely rebuilding a network is cost-prohibitive for most service providers.  This creates a quandary over what to do. One viable option for forward-thinking service providers is IP/MPLS backhaul solutions.  These enable carriers to leverage their existing broadband access infrastructure – whether it be microwave, copper (DSL) or fiber-based (GPON).  In the process they serve as the foundation for a flexible high-performance network, all without major capital expenditures or increased operating expenses.

Several broadband access solutions currently exist, but most all of them fail to successfully address broadband infrastructure backhaul requirements while leveraging DSL or GPON.

Reducing Total Cost of Network Ownership with lightRadio Baseband Processing and Backhauling


By Beecher Tuttle

In order to succeed in the current wireless market dominated by bandwidth-hungry mobile applications, service providers need to find ways to expand network capacity while simultaneously reducing energy consumption and operating costs. This is quite a challenge to say the least.

Alcatel-Lucent's efforts in this area have resulted in some profound innovations, headlined by its new wireless networking paradigm, lightRadio™, which is designed to help service providers address growth and quality challenges.

The lightRadio technology family is comprised of innovations in antennas, radios and baseband processing, which combine to allow service providers to create next-generation architectures without the need to make complete infrastructure overhauls. Rather, lightRadio makes the most of existing wireless assets and capabilities to address cost, capacity and connectivity barriers.

Reducing Total Cost of Network Ownership with lightRadio Baseband Processing and Backhauling


By Beecher Tuttle

In order to succeed in the current wireless market dominated by bandwidth-hungry mobile applications, service providers need to find ways to expand network capacity while simultaneously reducing energy consumption and operating costs. This is quite a challenge to say the least.

Alcatel-Lucent's efforts in this area have resulted in some profound innovations, headlined by its new wireless networking paradigm, lightRadio™, which is designed to help service providers address growth and quality challenges.

The lightRadio technology family is comprised of innovations in antennas, radios and baseband processing, which combine to allow service providers to create next-generation architectures without the need to make complete infrastructure overhauls. Rather, lightRadio makes the most of existing wireless assets and capabilities to address cost, capacity and connectivity barriers.

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